APA (7 वां संस्करण) प्रशस्ति पत्र

Blyton, E. (1942). The O'Sullivan Twins At St. Clare's (75th.). Hodder Children's Books.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Blyton, Enid. The O'Sullivan Twins At St. Clare's. 75th. London: Hodder Children's Books, 1942.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Blyton, Enid. The O'Sullivan Twins At St. Clare's. 75th. Hodder Children's Books, 1942.